CG MATERIAL
Boron Nitride Gasket, BN Gasket
Boron Nitride Gasket, BN Gasket
Boron Nitride gaskets are high-performance gaskets made from boron nitride, a synthetic ceramic material that offers excellent thermal and electrical insulation properties. These gaskets are designed to seal and isolate high-temperature or high-vacuum environments, where other gasket materials may fail or degrade.
Boron Nitride gaskets can withstand extreme temperatures up to 2000°C and provide superior resistance to thermal shock, making them ideal for use in applications such as semiconductor manufacturing, aerospace, and nuclear industries. They also exhibit high chemical resistance, low coefficient of friction, and excellent dielectric properties, making them suitable for use in electrical and electronic applications.
Boron Nitride gaskets are available in various shapes and sizes, including sheet, disc, and custom-designed shapes to meet specific application requirements. They can be machined, cut, or formed into complex shapes, making them versatile and easy to use in different applications. Overall, Boron Nitride gaskets provide exceptional performance and reliability in demanding environments.
Comparison of Boron Nitride Ceramics
| Grade | BN-BO | BN-SZ | BN-AlN |
| Compositions | BN>98% | BN+SiC+ZrO2 | BN+AIN |
| Binder | B2O3 | / | AlBO3 |
| Density | 2.1-2.2 g/cm3 | 2.3-3.0 g/cm3 | 2.5-2.6 g/cm3 |
| 25°C Volume Resistivity | >1013 Ω·cm | >1012 Ω·cm | >1014 Ω·cm |
| Max. Service Temp. (°C) Oxygen; Inert Gas; High Vacuum |
900 2000 1800 |
900 1700 1700 |
900 2100 1900 |
| Flexural Strength | 75 Mpa | 100 Mpa | 130 Mpa |
| Compressive Strength | 100 Mpa | 300 Mpa | 250 Mpa |
| Coefficient of Thermal Expansion 25-1000°C |
2.0 x 10–6/K | 4.0 x 10–6/K | 4.5 x 10–6/K |
| Thermal Conductivity | 30 W/mK | 40 W/mK | 60 W/mK |
Boron Nitride Gasket Applications
– Boron Nitride components for PVD, MOCVD, MBE system.
– Insulators for high-temperature furnace
– Feedthrough for high voltage equipment
– Spacers for glass melting
– Boron Nitride parts for ion injection equipment
Boron Nitride Gasket Available Materials
| Material | Description | Availability |
| BN99 | Hot pressed at high temperature (1900℃). Excellent corrosion resistance and thermal conductivity. Limited wear resistance Self-bonded and high purity(>99%) |
Machinable Blanks Finished Parts |
| BNBO | General purpose material Bonded by boric oxide |
Finished Parts |
| BNCB | Calcium borate bonded boron nitride Enhanced moisture resistance |
Finished Parts |
| BN60 | BN 60%, SiO2 40% | Finished Parts |
| BN40 | BN 40%, SiO2 60% | Finished Parts |
| ZSBN | BN-45%, Zr2O3 45% | Finished Parts |
Packaging
We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.
